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Finding the Fourth Proportional to 18,447,659.60, 27,596,839.80 and 16,208,171.60

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Solution

The fourth proportional to 18,447,659.60, 27,596,839.80 and 16,208,171.60 is: 24,246,670.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447,659.60 : 27,596,839.80 = 16,208,171.60 : x
  2. Step 2: Convert to fraction form
    18,447,659.60/27,596,839.80 = 16,208,171.60/x
  3. Step 3: Cross multiply
    18,447,659.60x = 27,596,839.80 × 16,208,171.60
  4. Step 4: Simplify right side
    18,447,659.60x = 447,294,315,096,109.69
  5. Step 5: Solve for x
    x = 447,294,315,096,109.69/18,447,659.60
  6. Step 6: Final answer
    x = 24,246,670.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.